Fuel cell emergency power station

Abstract

The utility model relates to fuel cell standby power technology field discloses a kind of fuel cell emergency power station, including energy management device, power distribution device, for storing energy storage battery device and for converting hydrogen into electric energy fuel cell device;The power distribution device includes UPS, the input of the UPS is connected with the fuel cell device, the energy storage battery device and commercial power respectively, and the output of the UPS is used to be connected with electric load, the energy storage battery device is connected with the fuel cell device and can provide start-up power supply for the fuel cell device, and the energy management device is connected with the fuel cell device, the energy storage battery device and the UPS communication respectively.The utility model can be reliable emergency power supply when commercial power interruption or deficiency.

Description

Technical Field

[0001] This utility model relates to the field of fuel cell backup power technology, and in particular to a fuel cell emergency power station. Background Technology

[0002] As society's demands for reliable power supply continue to rise, especially in emergencies such as grid outages, extreme weather, or power shortages in remote areas, the development of safe and reliable emergency power systems is of paramount importance. Simultaneously, under the global trend of promoting low-carbon development, adopting clean and efficient energy technologies as emergency power sources has become an important development direction. Hydrogen fuel cell technology, with its environmentally friendly and high-efficiency characteristics, demonstrates enormous potential in the field of emergency power supply.

[0003] Currently, technologies for building emergency power generation devices using hydrogen fuel cell systems are gradually being developed and applied. These existing technologies typically include core components such as fuel cell stacks, hydrogen storage devices, and power conversion units, aiming to convert hydrogen energy into electrical energy to meet emergency power needs.

[0004] However, current fuel cell emergency power generation technologies still have certain shortcomings in design and functionality. For example, some existing technologies may be overly reliant on specific start-up power sources or auxiliary equipment. If these dependencies fail, the entire system will fail to start or operate normally, affecting its reliability. Furthermore, these solutions are often functionally limited, failing to fully consider various operating modes and complex power demands, such as integration with energy storage systems for optimized energy management, or use as a flexible supplementary power source when there are power shortages in the grid. Therefore, existing technologies fail to provide a comprehensive mobile emergency power solution that integrates high safety, high reliability, large capacity, long lifespan, low maintenance requirements, and integrated energy management functions to effectively address diverse and extreme power supply needs. Utility Model Content

[0005] The purpose of this invention is to provide a fuel cell emergency power station that can serve as a reliable emergency power source when mains power is interrupted or insufficient.

[0006] To achieve the above objectives, this utility model provides a fuel cell emergency power station, comprising: an energy management device, a power distribution device, an energy storage battery device for storing electrical energy, and a fuel cell device for converting hydrogen into electrical energy.

[0007] The power distribution device includes a UPS. The input terminals of the UPS are connected to the fuel cell device, the energy storage battery device, and the mains power, respectively. The output terminal of the UPS is used to connect to the electrical load. The energy storage battery device is connected to the fuel cell device and can provide starting power for the fuel cell device. The energy management device is communicatively connected to the fuel cell device, the energy storage battery device, and the UPS, respectively.

[0008] Furthermore, it also includes a cooling device connected to the fuel cell device and communicatively connected to the energy management device.

[0009] Furthermore, the power distribution device also includes a high-voltage distribution cabinet, which is connected to the input terminals of the fuel cell device, the energy storage battery device, and the UPS.

[0010] Furthermore, the power distribution device also includes a low-voltage distribution cabinet, which is connected to the high-voltage distribution cabinet.

[0011] Furthermore, the power distribution device also includes an AC distribution cabinet, and the output terminal of the UPS is connected to the electrical load through the AC distribution cabinet.

[0012] Furthermore, the fuel cell device includes a hydrogen supply assembly, an air compressor, a fuel cell stack, and a DC-DC converter; the hydrogen inlet of the fuel cell stack is connected to the hydrogen supply assembly, the air inlet of the fuel cell stack is connected to the air compressor, and the power output terminal of the fuel cell stack is connected to the high-voltage distribution cabinet through the DC-DC converter.

[0013] Furthermore, the cooling device has a main outlet, a main inlet, an auxiliary outlet, and an auxiliary inlet; the fuel cell stack has a coolant outlet and a coolant inlet; the DC-DC converter has a cooling outlet and a cooling inlet; the main outlet is connected to the coolant inlet; the main inlet is connected to the coolant outlet; the auxiliary outlet is connected to the cooling inlet; and the auxiliary inlet is connected to the cooling outlet.

[0014] Furthermore, it also includes a first circuit and a second circuit. The input terminal of the UPS is connected to the mains power through the first circuit, and an input switch is connected in series on the first circuit. The output terminal of the UPS is connected to the electrical load through the second circuit, and a power output switch is connected in series on the second circuit.

[0015] Furthermore, it also includes a third circuit and a fourth circuit. The high-voltage distribution cabinet is connected to the input terminal of the UPS through the third circuit. A high-voltage output switch is connected in series on the third circuit. The energy storage battery device is connected to the high-voltage distribution box through the fourth circuit. An energy storage current switch is connected in series on the fourth circuit.

[0016] Furthermore, it also includes an explosion-proof container and a mobile device. The fuel cell device, the power distribution device, the energy management device, and the energy storage battery device are all located inside the explosion-proof container. The explosion-proof container is connected to the mobile device, and the explosion-proof container is provided with an AC power interface and an electrical load interface.

[0017] Compared with the prior art, the beneficial effects of this utility model embodiment of a fuel cell emergency power station are as follows:

[0018] The fuel cell emergency power station of this utility model utilizes an energy storage battery device, enabling the rational use and storage of electrical energy. Especially when there is grid power supply, it can store off-peak electricity, achieving peak-hour utilization and improving energy efficiency. This power station possesses the capability for coordinated power supply from multiple energy sources, including fuel cells, energy storage, and grid power. It can intelligently identify the needs of electrical equipment and automatically schedule power usage, ensuring a stable and reliable power output under any environment, effectively responding to energy fluctuations and sudden demands. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the connection structure of a fuel cell emergency power station according to an embodiment of the present invention.

[0020] In the diagram, 1. Energy management device; 2. Energy storage battery device; 3. Fuel cell device; 31. Hydrogen supply assembly; 41. UPS; 42. High-voltage distribution cabinet; 43. Low-voltage distribution cabinet; 44. AC distribution cabinet; 5. Mains power; 6. Cooling device; 7. Electrical load; 8. Display screen; 9. Industrial control computer. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should be understood that the terms "connected," "linked," and "fixed," etc., used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a welded connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this invention, terms such as "first" and "second" are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0025] Reference Figure 1 An embodiment of the present invention provides a fuel cell emergency power station, comprising: an energy management device 1, a power distribution device, an energy storage battery device 2 for storing electrical energy, and a fuel cell device 3 for converting hydrogen into electrical energy.

[0026] The power distribution device includes a UPS41. The input terminals of the UPS41 are connected to the fuel cell device 3, the energy storage battery device 2, and the mains power 5, respectively. The output terminal of the UPS41 is used to connect to the electrical load 7. The energy storage battery device 2 is connected to the fuel cell device 3 and can provide starting power for the fuel cell device 3. The energy management device 1 is communicatively connected to the fuel cell device 3, the energy storage battery device 2, and the UPS41, respectively.

[0027] The emergency power station of this application integrates a fuel cell device 3 and an energy storage battery device 2, and is coordinated and controlled by an intelligent energy management device 1. The energy storage battery device 2 not only stores energy but also provides supplementary power to the electrical load 7 in the absence of mains power 5 or external power supply. It also serves as the starting power source for the fuel cell device 3, significantly improving the system's startup reliability and independence. The energy management device 1 can intelligently schedule the flow of electricity according to load demand and the status of various energy sources, achieving multi-energy collaborative power supply and optimized energy management, effectively addressing complex power consumption scenarios. The presence of the UPS 41 ensures smooth switching between different power sources and stable power supply to the load.

[0028] Specifically, the energy storage battery device 2 is used to store electrical energy and mainly consists of a battery pack and a battery management system (BMS). The energy storage battery device 2 is connected to the power distribution device via a cable, and its DC bus is connected in parallel with the DC output of the fuel cell device 3. The energy storage battery device 2 communicates with the energy management device 1, reporting battery status and receiving charge / discharge commands. The energy storage battery device 2 can store electrical energy when the fuel cell device 3 outputs excess electrical energy or when the mains power supply 5 is low, and can discharge to supplement energy when the fuel cell device 3 outputs insufficient energy or when load demand increases. It also provides the necessary starting power for the fuel cell device 3 under specific operating conditions, overcoming the dependence of existing technologies on specific starting sources. The energy storage battery device 2 has an internal energy storage current switch for controlling its connection with the power distribution device.

[0029] The UPS41 (Uninterruptible Power Supply) described in this application is a device used to supply uninterrupted power. It can immediately switch to a backup power source when the mains power fails, ensuring continuous power supply to devices connected to the UPS41 and preventing data loss, equipment damage, and other problems caused by sudden power outages. A UPS41 typically consists of a battery or other energy storage device, a rectifier, an inverter, and control circuitry.

[0030] The energy management device 1 in this application can: store excess electrical energy in the energy storage battery device 2 when the output power of the fuel cell device 3 is greater than the load demand; supplement electrical energy by the energy storage battery device 2 when the output power of the fuel cell device 3 is less than the demand of the electrical load 7; store electrical energy generated by the mains power 5 or the fuel cell device 3 in the energy storage battery device 2 when the mains power 5 is supplied; and achieve millisecond-level seamless switching of the electrical load 7 by linking the energy storage battery device 2 and the UPS41 (uninterruptible power supply) when the mains power 5 is interrupted.

[0031] In some improvements to this application, a cooling device 6 is further included. The cooling device 6 is connected to the fuel cell unit 3 and is communicatively connected to the energy management device 1. The cooling device 6 manages the heat generated during the operation of the fuel cell unit 3, ensuring it operates at a suitable temperature, thus improving system stability and lifespan. The energy management device 1's control over the cooling device 6 makes thermal management more efficient. In other embodiments of this application, the cooling device 6 can also be simultaneously connected to other devices in the emergency power station, such as power distribution equipment, to prevent excessive heat buildup.

[0032] In some improvements to this application, the power distribution device further includes a high-voltage distribution cabinet 42, which is connected to the input terminals of the fuel cell device 3, the energy storage battery device 2, and the UPS 41. The high-voltage distribution cabinet 42 serves as a high-voltage combiner and distribution point on the DC side, combining the DC power generated by the fuel cell device 3 and the energy storage battery device 2 and sending it to the UPS 41 and other components requiring high-voltage DC power, thus simplifying wiring.

[0033] In some improvements to this application, the power distribution device further includes a low-voltage distribution cabinet 43, which is connected to the high-voltage distribution cabinet 42. The low-voltage distribution cabinet 43 is used to convert high-voltage DC power into low-voltage DC power and distribute it to the low-voltage auxiliary components within the system, thus meeting the power requirements of equipment at different voltage levels.

[0034] In some improvements to this application, the power distribution device further includes an AC distribution cabinet 44, through which the output of the UPS 41 is connected to the electrical load 7. The AC distribution cabinet 44 serves as the distribution center on the AC side, distributing the AC power output from the UPS 41 to the external electrical load 7.

[0035] In some improvements of this application, the fuel cell device 3 includes a hydrogen supply assembly 31, an air compressor, a fuel cell stack, and a DC-DC converter; the hydrogen inlet of the fuel cell stack is connected to the hydrogen supply assembly 31, the air inlet of the fuel cell stack is connected to the air compressor, and the power output terminal of the fuel cell stack is connected to the high-voltage distribution cabinet 42 through the DC-DC converter.

[0036] The fuel cell unit 3 converts hydrogen and air into direct current (DC) electricity through an electrochemical reaction. The hydrogen supply assembly 31 supplies hydrogen to the fuel cell stack, while the air compressor supplies air. The fuel cell stack is the core component responsible for generating electricity through the electrochemical reaction. The DC electricity generated by the fuel cell unit 3 is output after voltage adjustment by an internal DC-DC converter to match the requirements of the high-voltage distribution cabinet 42. Specifically, the hydrogen supply assembly 31 includes a hydrogen pump to deliver hydrogen to the fuel cell stack, and an air compressor to compress and deliver air to the stack. The hydrogen pump is typically made of high-efficiency, corrosion-resistant materials to handle the high pressure and potential reactivity of hydrogen; the air compressor has intelligent adjustment capabilities, capable of adjusting the flow and pressure of compressed air according to the actual needs of the fuel cell stack to optimize its performance and efficiency. Through the coordinated operation of the hydrogen supply assembly 31, the air compressor, and the fuel cell stack, the hydrogen fuel cell unit 3 achieves a highly efficient process of converting hydrogen and air into electrical and thermal energy. This process is not only environmentally friendly and pollution-free but also highly efficient and reliable, providing stable and sustainable power support for emergency power systems.

[0037] In some improvements of this application, the cooling device 6 has a main outlet, a main inlet, an auxiliary outlet, and an auxiliary inlet; the fuel cell stack has a coolant outlet and a coolant inlet; the DC-DC converter has a cooling outlet and a cooling inlet; the main outlet is connected to the coolant inlet; the main inlet is connected to the coolant outlet; the auxiliary outlet is connected to the cooling inlet; and the auxiliary inlet is connected to the cooling outlet.

[0038] To maintain the fuel cell unit 3, particularly the stack and DC-DC converter, at a suitable operating temperature, this power plant is also equipped with a cooling system 6. The cooling system 6 is connected to the stack and DC-DC converter via piping, and circulating coolant removes heat. The cooling system 6 has a main circulation pipe and an auxiliary circulation pipe, which are respectively connected to the coolant inlet of the stack and the cooling inlet of the DC-DC converter.

[0039] In a specific embodiment of this application, the cooling device 6 includes an evaporative heat exchange tower radiator; the evaporative heat exchange tower radiator is internally equipped with coils, spray branches, a water tank, an air inlet grille, and an exhaust fan. The air inlet grille is located at the bottom of the evaporative heat exchange tower radiator, and the exhaust fan is located at the top of the evaporative heat exchange tower radiator; the coils are used for the circulation of the working fluid; the spray branches include a spray pump, pipes, and nozzles. The spray pump is used to draw the working fluid from the water tank and transport it to the nozzles through the pipes. The nozzles are used to spray the working fluid onto the surface of the coils to form a water film; the water tank is used to collect the working fluid; the air inlet grille is used to allow external air to enter; and the exhaust fan is used to exhaust the hot and humid air after heat exchange.

[0040] Specifically, the working principle of an evaporative heat exchanger tower radiator is as follows: The working fluid, such as water, circulates through the coils of the radiator. The heat it carries is transferred to the outside through the coil walls. A spray pump draws the working fluid from the water tank and delivers it through pipes to nozzles. The nozzles spray the working fluid onto the surface of the coils, forming a thin water film. This water film not only increases the heat exchange area but also absorbs a large amount of heat through evaporation. Simultaneously, surrounding air enters naturally or is forced into the radiator through the air inlet grille at the bottom, flowing upwards through the coil area in the opposite direction to the water flow. During this process, some of the water film evaporates, absorbing a large amount of heat and transferring it to the air. Subsequently, the hot, humid air containing water vapor is exhausted into the atmosphere by the exhaust fan at the top of the radiator. The unevaporated water falls into the bottom water tank and is then pumped back to the water distribution system and sprayed back onto the coils, forming a closed-loop water circulation process. This ensures effective heat dissipation and the continuous, stable operation of the system.

[0041] In some improvements of this application, a first circuit and a second circuit are also included. The input terminal of the UPS41 is connected to the mains power 5 through the first circuit, and an input switch is connected in series on the first circuit. The output terminal of the UPS41 is connected to the electrical load 7 through the second circuit, and an output switch is connected in series on the second circuit.

[0042] In some improvements of this application, a third circuit and a fourth circuit are also included. The high-voltage distribution cabinet 42 is connected to the input terminal of the UPS 41 through the third circuit. A high-voltage output switch is connected in series on the third circuit. The energy storage battery device 2 is connected to the high-voltage distribution box through the fourth circuit. An energy storage current switch is connected in series on the fourth circuit.

[0043] Specifically, the power distribution unit is the center for the collection, conversion, distribution, and control of electrical energy. It includes a high-voltage distribution cabinet 42, an uninterruptible power supply (UPS) 41, an AC distribution cabinet 44, and a low-voltage distribution cabinet 43. The high-voltage distribution cabinet 42 receives high-voltage DC power from the fuel cell device 3 and the energy storage battery device 2, achieving power collection. The high-voltage distribution cabinet 42 is connected to the input terminal of the UPS 41 via a third circuit, on which a high-voltage output switch is connected in series. The energy storage battery device 2 is connected to the high-voltage distribution cabinet 42 via a fourth circuit, on which a storage current switch is connected in series. The high-voltage distribution cabinet 42 is also connected to the low-voltage distribution cabinet 43. The low-voltage distribution cabinet 43 receives electrical energy from the high-voltage distribution cabinet 42 and converts it into low-voltage DC power required by the low-voltage auxiliary components within the system for distribution. The UPS 41 is a double-conversion online uninterruptible power supply capable of converting DC power into stable and reliable AC power. The output terminal of the UPS 41 is connected to the electrical load 7 via a second circuit, on which a power output switch is connected in series. The AC distribution cabinet 44 is connected to the output of the UPS 41 and distributes AC power to the external electrical load 7 and the internal AC loads such as the cooling device 6.

[0044] In some improvements to this application, an explosion-proof container and a mobile device are also included. The fuel cell device 3, the power distribution device, the energy management device 1, and the energy storage battery device 2 are all housed within the explosion-proof container. The explosion-proof container is connected to the mobile device, and it is equipped with a mains power interface (5) and a power load interface (7). Integrating all core components within an explosion-proof mobile container greatly improves the system's mobility and deployment flexibility, allowing it to be deployed in various locations. The explosion-proof container also features a mains power interface (5) and a power load interface (7) on its exterior for easy external connection.

[0045] In this application's technical solution, the energy management device 1 serves as the intelligent control brain of the entire emergency power station. It communicates with the fuel cell unit 3, the energy storage battery unit 2, and the power distribution unit, particularly the UPS 41 and the intelligent modules in each distribution cabinet. The energy management device 1 receives status data from each unit and dynamically adjusts the operating mode and power output of each unit based on preset operating strategies, load demands, energy storage battery status, hydrogen reserves, and mains power status. Specifically, the energy management device 1 can intelligently control the output ratio of the fuel cell and energy storage battery to achieve peak-shaving and valley-filling; control the start / stop and speed of the cooling unit 6's fans and water pumps; coordinate the UPS 41 and energy storage battery to achieve millisecond-level seamless switching during mains power interruptions; and execute system start-up, shutdown, and various protection functions, such as hydrogen leakage protection and over-temperature / over-pressure protection. The energy management device 1 is typically connected to an external display screen 8 and an industrial control computer 9 for human-machine interaction, data monitoring, and remote control.

[0046] In the mains power 5 startup process, mains power 5 is used to power the electrical load 7: First, after confirming that the mains power 5 supply is normal and safe, the input switch is closed to allow the UPS 41 to draw power from mains power 5 and start. After the UPS 41 starts and outputs normally, the UPS 41 output switch is closed, allowing the electrical load 7 to obtain a stable power supply from the UPS 41 through the AC distribution cabinet 44. Subsequently, the high-voltage output switch and energy storage current switch are closed to wake up the energy storage battery device 2. The energy storage battery device 2 begins to supply power to the high-voltage distribution cabinet 42. The high-voltage distribution cabinet 42 distributes electrical energy to the low-voltage distribution cabinet 43 for powering the low-voltage components of the system. At the same time, the high-voltage distribution cabinet 42 also provides startup power to the fuel cell device 3 to start the fuel cell stack. After the fuel cell device 3 starts and outputs stably, the DC power it generates also flows to the high-voltage distribution cabinet 42. The DC power from the high-voltage distribution cabinet 42 can be sent to the UPS 41 to be inverted into AC power, and then distributed to the electrical load 7 through the AC distribution cabinet 44 to provide additional power support when needed.

[0047] In the cold start process without mains power, firstly, the output switch of the high-voltage distribution cabinet 42 is closed to wake up the energy storage battery device 2. The status of the energy storage battery device 2 is checked; if it is in good condition, the energy storage current switch is closed, and the energy storage battery begins to supply power to the high-voltage distribution cabinet 42. The output switch of the UPS 41 is closed, and the UPS 41 uses the energy from the energy storage battery to invert and output AC power. The high-voltage distribution cabinet 42 distributes the energy from the energy storage battery to the low-voltage distribution cabinet 43 and the fuel cell device 3, starting the fuel cell stack. After the fuel cell device 3 starts and stabilizes, the DC power it generates flows to the high-voltage distribution cabinet 42. The DC power from the high-voltage distribution cabinet 42 is sent to the UPS 41 for inversion into AC power, and then distributed to the electrical load 7 via the AC distribution cabinet 44.

[0048] During the above process, the energy management device 1 monitors the entire startup process and performs coordinated control. Specifically, the allocation of electrical energy can be as follows: the energy management device 1 can allocate the electrical energy stored in the mains power 5, the fuel cell device 3, or the energy storage battery device 2 to supply power to the electrical equipment.

[0049] In summary, this utility model provides a fuel cell emergency power station that organically integrates a fuel cell device 3, an energy storage battery device 2, a power distribution device, a cooling device 6, and an energy management device 1, and modularizes and moves them, providing a powerful, reliable, energy-manageable, flexible, and safe fuel cell emergency power station that effectively overcomes the shortcomings of the prior art.

[0050] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A fuel cell emergency power station, characterized in that, include: Energy management devices, power distribution devices, energy storage battery devices for storing electrical energy, and fuel cell devices for converting hydrogen into electrical energy. The power distribution device includes a UPS. The input terminals of the UPS are connected to the fuel cell device, the energy storage battery device, and the mains power, respectively. The output terminal of the UPS is used to connect to the electrical load. The energy storage battery device is connected to the fuel cell device and can provide starting power for the fuel cell device. The energy management device is communicatively connected to the fuel cell device, the energy storage battery device, and the UPS, respectively. The power distribution device also includes a high-voltage distribution cabinet, which is connected to the input terminals of the fuel cell device, the energy storage battery device, and the UPS, respectively. It also includes a third circuit and a fourth circuit. The high-voltage distribution cabinet is connected to the input terminal of the UPS through the third circuit. A high-voltage output switch is connected in series on the third circuit. The energy storage battery device is connected to the high-voltage distribution cabinet through the fourth circuit, so that the energy storage battery device can absorb and store electrical energy from the mains through the UPS and the high-voltage distribution cabinet. An energy storage current switch is connected in series on the fourth circuit.

2. The fuel cell emergency power station as described in claim 1, characterized in that, It also includes a cooling device connected to the fuel cell device and communicatively connected to the energy management device.

3. The fuel cell emergency power station as described in claim 1, characterized in that, The power distribution device also includes a low-voltage distribution cabinet, which is connected to the high-voltage distribution cabinet.

4. The fuel cell emergency power station as described in claim 1, characterized in that, The power distribution device also includes an AC distribution cabinet, and the output of the UPS is connected to the electrical load through the AC distribution cabinet.

5. The fuel cell emergency power station as described in claim 2, characterized in that, The fuel cell device includes a hydrogen supply assembly, an air compressor, a fuel cell stack, and a DC-DC converter; the hydrogen inlet of the fuel cell stack is connected to the hydrogen supply assembly, the air inlet of the fuel cell stack is connected to the air compressor, and the power output terminal of the fuel cell stack is connected to the high-voltage distribution cabinet through the DC-DC converter.

6. The fuel cell emergency power station as described in claim 5, characterized in that, The cooling device has a main water outlet, a main water inlet, an auxiliary water outlet, and an auxiliary water inlet. The fuel cell stack has a coolant outlet and a coolant inlet. The DC-DC converter has a cooling outlet and a cooling inlet. The main water outlet is connected to the coolant inlet. The main water inlet is connected to the coolant outlet. The auxiliary water outlet is connected to the cooling inlet. The auxiliary water inlet is connected to the cooling outlet.

7. The fuel cell emergency power station as described in claim 1, characterized in that, It also includes a first circuit and a second circuit. The input terminal of the UPS is connected to the mains power through the first circuit, and an input switch is connected in series on the first circuit. The output terminal of the UPS is connected to the electrical load through the second circuit, and a power output switch is connected in series on the second circuit.

8. The fuel cell emergency power station as described in any one of claims 1 to 7, characterized in that, It also includes an explosion-proof container and a mobile device. The fuel cell device, the power distribution device, the energy management device and the energy storage battery device are all located inside the explosion-proof container. The explosion-proof container is connected to the mobile device. The explosion-proof container is provided with a mains power interface and a power load interface.

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